Easy-Off works just fine. The best way to do this is:
Seal off any openings in the kit that you don't want to remove paint from.
Make sure you use gloves. Playtex Living Gloves work great for this.
Get a Tuperware bowl, or any SEALABLE container with an air-tight lid, that is large enough for the model to sit in and still close the lid.
CAREFULLY spray the Easy-Off on the model, completely covering it.
Place the model in the air-tight container, and close the lid tightly.
Let it sit for about 24 hours. It might not actually take that long, but, just to be on the safe side......
Take it out and rinse it THOROUGHLY with lots of water. All of the paint should be gone. If not, repeat.
Well, that's how I did it anyway. I've only done it once, on a Chrysler Prowler model, and it worked great. Hope you have good results.